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SubjectRe: B53 DSA switch problem on Banana Pi-R1 on Fedora 26
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On 05/22/2018 01:16 PM, Andrew Lunn wrote:
>> Planned network structure will be as with 4.7.x kernels:
>>
>> br0 <=> eth0.101 <=> eth0 (vlan 101 tagged) <=> lan 1-lan4 (vlan 101
>> untagged pvid)
>>
>> br1 <=> eth0.102 <=> eth0 (vlan 102 tagged) <=> wan (vlan 102 untagged pvid)
>
> Do you even need these vlans?

Yes, remember, b53 does not currently turn on Broadcom tags, so the only
way to segregate traffic is to have VLANs for that.

>
> Are you doing this for port separation? To keep lan1-4 traffic
> separate from wan? DSA does that by default, no vlan needed.
>
> So you can just do
>
> ip link add name br0 type bridge
> ip link set dev br0 up
> ip link set dev lan1 master br0
> ip link set dev lan2 master br0
> ip link set dev lan3 master br0
> ip link set dev lan4 master br0
>
> and use interface wan directly, no bridge needed.

That would work once Broadcom tags are turned on which requires turning
on managed mode, which requires work that I have not been able to get
done :)
--
Florian

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